Panamax PM8-HT 8-Outlet Power Line Conditioner and Surge Protector (Discontinued by Manufacturer) Improves picture and sound quality The PM8-HT's Power Cleaning and Filtration System eliminates common symptoms of contaminated power In the event of a catastrophic surge such as lightning, it completely disconnects AC power to connected equipment Panamax's patent-pending AVM circuitry continuously monitors the incoming line voltage and disconnects your equipment in the event of an over-voltage Includes 8 total outlets, 3 sets of coaxial protection, and 1 set of phone line protection